Life Support acts as both the breathing supply and physical stamina reservoir of your Exosuit. Standing still or walking at a casual pace on an ordinary temperate world consumes virtually zero Life Support, whereas sprinting, firing your jetpack, chaining melee-boost lunges, or exploring dead airless moons drains the bar noticeably with one to three chevron arrows. Depleting Life Support completely disables sprinting and jetpack ignition and begins chipping away at your shield and health cubes, which makes running dry mid-jump over a steep canyon far deadlier than running low on flat ground. Always keep a sliver of jetpack thrust and Life Support in reserve to cushion steep descents so fall damage never breaks your suit tech.
Refueling with Oxygen, Gel, and Dioxite
Red Oxygen rich plants and hazardous cave puffballs provide easy early refills when pulsed with your Scanner, and Bulk Oxygen can also be harvested from gas hotspots once you build industrial bases. For long expeditions across barren or volcanic worlds where flora is sparse, press 40 Di-hydrogen into Di-hydrogen Jelly and combine it with 20 Carbon to craft Life Support Gel, which restores your entire Life Support tank in one Quick Menu click regardless of tank size. Travellers exploring frozen biomes should also note that blue Dioxite deposits recharge Life Support directly alongside cold-protection modules.
Upgrading efficiency and daytime solar recovery
Installing up to three S-class or high-roll X-class Life Support modules in a 2x2 square beside your core Life Support unit dramatically expands total tank size while cutting sprint and jetpack fuel burn. Pair that cluster with the craftable Solar Panel blueprint unlocked at the Space Anomaly Exosuit research terminal; Solar Panel power cuts daytime Life Support consumption to a fraction of its baseline rate, letting you sprint and jetpack across sunlit continents for twenty or thirty minutes between refills.
Keeping emergency reserves on your person
One of the easiest mistakes in No Man's Sky is stashing all of your spare Oxygen and Life Support Gel inside your starship cargo hold or freighter tabs before hiking into a deep cave network or diving into an ocean trench. Once you wander beyond starship transfer range without a Matter Beam overhead, supplies sitting in your cockpit might as well be in another galaxy. Dedicate two permanent Exosuit Cargo slots to a stack of Oxygen and a stack of Life Support Gel, and add the Aeration Membrane before prolonged underwater salvaging.